Thanks for clarifying. I wanted to tease out the use-case because running Collect on a notebook/laptop for trainings (Showing ODK Collect form with projector) is a lot different than running Collect for actual data collection on a laptop.
I agree with the rest of the folks on this thread that using an emulator like Genymotion or Bluestacks would be a good place to start. But it probably won't necessarily support hardware-based widgets like the barcode scanner or GPS. You'll have to test to confirm.
Another great option is to use Enketo which works great in any web browser.